/**
 * Design Tokens — Indian Coast Guard Dornier Training Flight System
 * Theme: Tactical Flight Deck • Human-Designed Military Aviation UI
 */

:root {
  /* Brand & Navy Command Identity */
  --color-navy-950: #081528;
  --color-navy-900: #0C1E36;
  --color-navy-850: #102644;
  --color-navy-800: #163258;
  --color-navy-700: #234B80;
  --color-navy-600: #33629F;
  --color-navy-100: #E2EAF4;
  --color-navy-50:  #EFF4FA;

  /* Tactical & Aviation Accents */
  --color-primary: #1D4ED8;
  --color-primary-hover: #1E40AF;
  --color-primary-active: #172554;
  --color-primary-light: #EFF6FF;
  --color-primary-border: #BFDBFE;

  /* Naval Aviator Gold / Caution Amber */
  --color-gold: #D97706;
  --color-gold-hover: #B45309;
  --color-gold-bg: #FFFBEB;
  --color-gold-border: #FDE68A;

  /* Precision Tactical Cyan */
  --color-cyan: #0284C7;
  --color-cyan-bg: #F0F9FF;
  --color-cyan-border: #BAE6FD;

  /* Surfaces & Tactical Canvas */
  --color-bg: #F4F6F9;
  --color-surface: #FFFFFF;
  --color-surface-elevated: #F8FAFC;
  --color-surface-subtle: #EEF2F6;
  --color-surface-muted: #E2E8F0;

  /* Typography / High-Legibility Text */
  --color-text-main: #0B1324;
  --color-text-secondary: #334155;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;
  --color-text-inverse: #F8FAFC;
  --color-text-inverse-muted: #94A3B8;

  /* Borders & Tactical Dividers */
  --color-border: #DCE3EC;
  --color-border-subtle: #EBF0F5;
  --color-border-hover: #B8C7D8;
  --color-border-dark: #1E3A5F;
  --color-border-focus: #1D4ED8;

  /* Operational / Status States */
  --color-success: #059669;
  --color-success-bg: #ECFDF5;
  --color-success-border: #A7F3D0;

  --color-warning: #D97706;
  --color-warning-bg: #FFFBEB;
  --color-warning-border: #FDE68A;

  --color-error: #DC2626;
  --color-error-bg: #FEF2F2;
  --color-error-border: #FECACA;

  --color-info: #0284C7;
  --color-info-bg: #F0F9FF;
  --color-info-border: #BAE6FD;

  /* Typography Scale */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-md: 1.125rem;   /* 18px */
  --font-size-lg: 1.25rem;    /* 20px */
  --font-size-xl: 1.5rem;     /* 24px */
  --font-size-2xl: 1.75rem;   /* 28px */
  --font-size-3xl: 2.25rem;   /* 36px */

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;

  /* Spacing Scale */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */

  /* Component Radii (Restrained, Precision-Cut, Not Overly Rounded) */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-pill: 9999px;

  /* Shadows (Restrained, Crisp Tactical Edge, No Muddy Blurs) */
  --shadow-subtle: 0 1px 2px rgba(11, 19, 36, 0.04);
  --shadow-sm: 0 1px 3px 0 rgba(11, 19, 36, 0.06), 0 1px 2px -1px rgba(11, 19, 36, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(11, 19, 36, 0.06), 0 2px 4px -2px rgba(11, 19, 36, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(11, 19, 36, 0.06), 0 4px 6px -4px rgba(11, 19, 36, 0.03);
  --shadow-plate: 0 1px 2px rgba(11, 19, 36, 0.06), 0 4px 12px -2px rgba(11, 19, 36, 0.05);
  --shadow-portal: 0 20px 25px -5px rgba(8, 21, 40, 0.12), 0 8px 10px -6px rgba(8, 21, 40, 0.06);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   MARITIME TACTICAL DARK THEME TOKENS
   Deep naval night-deck palette preserving military contrast & grading
   ========================================================================== */
:root[data-theme="dark"] {
  /* Surfaces & Canvas */
  --color-bg: #0A1424;
  --color-surface: #14243A;
  --color-surface-elevated: #1A2D45;
  --color-surface-subtle: #122033;
  --color-surface-muted: #1E3450;

  /* Typography / High-Contrast Legibility */
  --color-text-main: #F0F5FC;
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #A5B7CE;
  --color-text-light: #64748B;
  --color-text-inverse: #0A1424;
  --color-text-inverse-muted: #475569;

  /* Borders & Tactical Dividers */
  --color-border: #2C425C;
  --color-border-subtle: #1C3048;
  --color-border-hover: #3E5B7E;
  --color-border-dark: #3E5B7E;
  --color-border-focus: #3B82F6;

  /* Primary Tactical Accents */
  --color-primary: #2563EB;
  --color-primary-hover: #3B82F6;
  --color-primary-active: #1D4ED8;
  --color-primary-light: rgba(37, 99, 235, 0.18);
  --color-primary-border: #1D4ED8;

  /* Naval Aviator Gold / Caution Amber */
  --color-gold: #F59E0B;
  --color-gold-hover: #FBBF24;
  --color-gold-bg: rgba(245, 158, 11, 0.16);
  --color-gold-border: rgba(245, 158, 11, 0.35);

  /* Tactical Cyan */
  --color-cyan: #38BDF8;
  --color-cyan-bg: rgba(56, 189, 248, 0.14);
  --color-cyan-border: rgba(56, 189, 248, 0.35);

  /* Operational / Status States */
  --color-success: #10B981;
  --color-success-bg: rgba(16, 185, 129, 0.16);
  --color-success-border: rgba(16, 185, 129, 0.35);

  --color-warning: #F59E0B;
  --color-warning-bg: rgba(245, 158, 11, 0.16);
  --color-warning-border: rgba(245, 158, 11, 0.35);

  --color-error: #EF4444;
  --color-error-bg: rgba(239, 68, 68, 0.16);
  --color-error-border: rgba(239, 68, 68, 0.35);

  --color-info: #38BDF8;
  --color-info-bg: rgba(56, 189, 248, 0.16);
  --color-info-border: rgba(56, 189, 248, 0.35);

  /* Dark Theme Night Shadows */
  --shadow-subtle: 0 1px 2px rgba(0, 0, 0, 0.25);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.35), 0 1px 2px -1px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.45), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
  --shadow-plate: 0 1px 2px rgba(0, 0, 0, 0.35), 0 4px 12px -2px rgba(0, 0, 0, 0.45);
  --shadow-portal: 0 20px 25px -5px rgba(0, 0, 0, 0.65), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
}

/* ==========================================================================
   PRINT SPECIFICATION — OFFICIAL PRINTER-FRIENDLY BEHAVIOR
   Forces crisp white paper and dark typography regardless of active theme
   ========================================================================== */
@media print {
  :root, :root[data-theme="dark"] {
    --color-bg: #FFFFFF !important;
    --color-surface: #FFFFFF !important;
    --color-surface-elevated: #FFFFFF !important;
    --color-surface-subtle: #F8FAFC !important;
    --color-text-main: #000000 !important;
    --color-text-secondary: #1F2937 !important;
    --color-text-muted: #4B5563 !important;
    --color-border: #D1D5DB !important;
    --color-border-subtle: #E5E7EB !important;
  }
}